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Stainless steel color precoated steel plates

A color-coated steel plate and stainless steel plate technology, which is applied in coatings, metal material coating processes, and devices for coating liquid on the surface, can solve the problems of insufficient corrosion resistance of color-coated steel plates and achieve excellent machining performance, Strong mechanical processing performance, colorful and colorful effects

Active Publication Date: 2017-11-24
RUITONG INFORMATION IND JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention overcomes the problem of insufficient corrosion resistance of color-coated steel sheets based on galvanized sheets, galvanized steel sheets, etc., and the prepared stainless steel color-coated steel sheets are affected by environmental factors and climate factors after one-time investment and use Small, greatly enhanced service life

Method used

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  • Stainless steel color precoated steel plates
  • Stainless steel color precoated steel plates
  • Stainless steel color precoated steel plates

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 As shown, the first structure of the present invention is centered on the stainless steel substrate, and the passivation layer, the primer layer and the topcoat layer are all coated successively on the upper and lower surfaces thereof; wherein the topcoat layer on the upper surface of the stainless steel substrate is The front finish paint layer, the finish paint layer on the lower surface of the stainless steel substrate is the back finish paint layer.

[0030] Wherein, the base material is 304 type stainless steel; the raw material composition mass percent of passive film is: halide 8%; Potassium sodium tartrate 2%; Sodium nitrate 10%; Chromium nitrate 18%; Sulfuric acid 12%; Nitric acid 5%; 1.5% cobalt; 0.5% hydrochloric acid; 2% sodium alkyl sulfate; the rest is pure water.

[0031] The front primer is an epoxy primer, which has stronger adhesion and better water boiling resistance than ordinary paint. Thickness: 5 microns; the front topcoat is po...

Embodiment 2

[0035] Such as figure 1 As shown, the first structure of the present invention is centered on the stainless steel substrate, and the passivation layer, the primer layer and the topcoat layer are all coated successively on the upper and lower surfaces thereof; wherein the topcoat layer on the upper surface of the stainless steel substrate is The front finish paint layer, the finish paint layer on the lower surface of the stainless steel substrate is the back finish paint layer.

[0036] Wherein, the base material is 430 type stainless steel; the raw material composition mass percent of passive film is: halide 8%; Potassium sodium tartrate 2%; Sodium nitrate 10%; Chromium nitrate 18%; Sulfuric acid 12%; Nitric acid 5%; 1.5% cobalt; 0.5% hydrochloric acid; 2% sodium alkyl sulfate; the rest is pure water.

[0037] The front primer is an epoxy primer, which has stronger adhesion and better water boiling resistance than ordinary paint. Thickness: 5 microns; the front topcoat is po...

Embodiment 3

[0041] Such as figure 2 As shown, the second structure of the present invention is to sequentially coat a front passivation layer, a front primer layer and a front finish paint layer on the upper surface of the stainless steel substrate. The lower surface of the stainless steel substrate is not primed and backpainted.

[0042] Wherein, the base material is stainless steel of 201 type; The raw material composition mass percent of passivation film is: Halide 9%; Potassium sodium tartrate 4%; Sodium nitrate 15%; Chromium nitrate 12%; Sulfuric acid 8%; 1.5% cobalt; 1% hydrochloric acid; 3% sodium alkyl sulfate; the rest is pure water.

[0043] The primer is a fluorocarbon primer, which has stronger adhesion and better water boiling resistance than ordinary fluorocarbon paints. Thickness: 10 microns; the front surface paint is fluorocarbon topcoat, which has better compatibility with primer than ordinary fluorocarbon paint, high hardness and good processing performance. The thi...

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Abstract

The invention provides three stainless steel color precoated steel plates. Stainless steel plates are used as base plates, (1) a passivation layer, a front face prime layer and a front face finish paint layer are sequentially arranged on the upper surface of each base plate in a covering mode; (2) a passivation layer, a front face prime layer and a front face finish paint layer are sequentially arranged on the upper surface of each base plate in a covering mode, and a passivation layer, a back face prime layer and a back face finish paint layer are sequentially arranged on the lower surface of each base plate in a covering mode; and (3) a passivation layer, a front face prime layer and a front face finish paint layer are sequentially arranged on the upper surface of each base plate in a covering mode, and a passivation layer and a back face finish paint layer are sequentially arranged on the lower surface of each base plate in a covering mode. The problem that color precoated steel plates with galvanized plates, al-zn alloy coated steel sheets and the like as base plates are insufficient in corrosion resistance is solved, the prepared stainless steel color precoated steel plates are slightly affected by environmental factors and climatic factors after being used through investment once, and the service life is greatly prolonged.

Description

technical field [0001] The invention relates to the technical field of metal coatings, in particular to a color-coated steel plate with a stainless steel plate as a base material and coated with colored paint. Background technique [0002] In the color coating industry in my country for more than 20 years, the color-coated sheets produced have bright and diverse colors, and can also protect the zinc layer of the galvanized substrate, prolonging the life of the galvanized sheet. Color-coated steel sheets are becoming more and more popular. As a result, manufacturers have sprung up from small to large, and the country has reached the current scale of hundreds of production lines. Color-coated panels have also expanded from the construction field to home appliances, automobiles, decoration and other fields. The substrates used in traditional color-coated sheets are cold-rolled steel sheets, galvanized steel sheets, galvanized steel sheets, and the like. Due to the limited co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/50C23C22/78B05D7/14B05D7/00
CPCB05D7/14B05D7/56C23C22/50C23C22/78C23C2222/10
Inventor 汤国江
Owner RUITONG INFORMATION IND JIANGSU
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